Description: Featuring driver-free plug-and-play installation, this user-friendly Bluetooth-compatible USB adapter for PC is easy to use, you just need to simply plug it into your USB port and enjoy automatic installation for setup in under a minute. Supporting multi-device connection, this adapter with 20 meters transmission distance allows wireless file transfer and wireless listening to songs, making computer transmission more convenient. It is constructed of ABS material. The length of this product is 2.83cm, the width is 1.5cm and the height is 0.7cm. It can be used for computers and mice. Item Name: Audio Adapter Material: ABS Color: Black Other Parameters: 5.1 Frequency Range: 2.4GHZ Transmission Distance: 0-20 Meters Rated Voltage: 5V Interface Type: USB Support: 4.1/4.2/5.0 Bluetooth-compatible Version Transmission Rate: 3 Mbps Operating System: Win7, Win8, Win8.1, Win10, Win11 (Win8 or Above System Driver Free) Size Details: LxWxH: 2.83cm x 1.5cm x 0.7cm/1.11" x 0.59" x 0.28"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Audio Adapter